Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 785 · 40 questions

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

1. 1.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) on the very top (d) hanging outside
3. 3.🔍 Which is the odd one out? (a) having a wide base (b) making brittle joints (c) adding steel to concrete (d) keeping a simple shape
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) making brittle joints (d) leaving out steel bars
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) using a heavy roof (d) leaving out steel bars
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) keeping a simple shape (d) leaving out steel bars
8. 8.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
14. 14.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) having a wide base (d) using a light roof
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) keeping a simple shape (d) building tall and narrow
16. 16.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) using flexible joints (d) leaving out steel bars
18. 18.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) leaving out steel bars (d) adding steel to concrete
19. 19.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) leaving out steel bars (d) using a heavy roof
23. 23.🔍 Which is the odd one out? (a) adding cross bracing (b) fitting rubber base pads (c) stacking loose bricks (d) using flexible joints
24. 24.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) stacking loose bricks (d) keeping a simple shape
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
26. 26.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
27. 27.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 210 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding steel to concrete (c) adding cross bracing (d) fitting rubber base pads
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
35. 35.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) stacking loose bricks (d) leaving out steel bars
38. 38.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) leaving out steel bars (d) using a light roof
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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